There is an old Spanish saying which states, “Tomorrow is often the busiest day of the week.” How many times have we put off our dreams tomorrow? {#blank#}1{#/blank#} We have to go for them now!

Tomorrow is not promised.

    Nobody likes to talk about death, but everybody is going to die at one point. None of us know the day or the hour. {#blank#}2{#/blank#} Don't go to your tomb(坟墓) with unrealized dreams. Make the decision to go after every dream, big or small right now.

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    One of the biggest dream killers is fear. Many people could have achieved amazing things if only they weren't afraid. Just think about all the things you've wanted to go, but allowed fear to convince you that you weren't talented, or good enough. Fear is not real. It is a product of thoughts you create.

Take action to realize your dream.

    You can dream about writing a great play, but it's never going to happen unless you actually put pen to paper. You can dream about finding a cure for cancer, but it will never happen unless you actually become equipped with the necessary tools to find that cure. {#blank#}4{#/blank#}

Possibilities are waiting on you.

    There are so many amazing opportunities and people waiting on you. How do you get to them? Simple! Follow your dream. {#blank#}5{#/blank#} You'll never see those doors if you sit around waiting on a dream to happen, instead of actually working to make it happen.

【1】A safari park is a park in which wild animals are kept. They are mainly located in east or central Africa. They often occupy a very wild area, with mountains and rivers. To visit the park and look at the animals, people have to drive around in a car for a few of hours because the park is huge.

【2】In south Africa there is a safari park, which contains all sorts of wild animals like lions, elephants, rhinoceroses(犀牛), zebras, wild pigs, deer and giraffes.

【3】There is a wild road leading through the park, but nobody is permitted to walk on the road. Anyone traveling in the park has to go in a car because wild animals may fiercely attack people. From the car he may see almost every types of African wildlife. Some of these are getting scarce (稀有的) because people kill them for various reasons. For example, rhinoceroses are killed for their horns (角), which are used in traditional Chinese medicines for colds and headaches. Perhaps they will be seen only in museums and books one day.

【4】Travels may buy food for the animals. They can feed them when they tour the park. Of course, they should not feed them in a close distance because the wild animals may attack people. In addition, they should only give proper food to the animals.

【5】A traveler may carry a gun with him in his journey. The gun is given to him by the government. However, it is not used for hunting. In fact, a seal(封条) is fixed to it. The traveler may fire at a wild beast to defend himself in case he is attacked. However, he has to prove to the government that he has been attacked and that he has not fired at a harmless animal.

    Perhaps at one point in time, it was acceptable to start any letter or e-mail with “To Whom It May Concern.”{#blank#}1{#/blank#} Starting your cover letter or e-mail for a job this way might give off the impression that you didn't do your research on who you're writing to{#blank#}2{#/blank#}After all, people who address other people by their names when writing and speaking to them tend to be more pleasant.

    {#blank#}3{#/blank#}It can be used in letters of recommendation or reference, formal complaints（抱怨）made to a company, letters of introduction, and letters of interest.

    Grammarly uses the example of needing to write a letter of recommendation, for a colleague who will have to make several copies to distribute to interviewers{#blank#}4{#/blank#}“In most cases, though, try to narrow your focus rather than cast a broad net,” notes Grammarly.”Ask yourself. Who does this e-mail concern? If you can honestly answer 'Anyone, 'then feel free to use “To Whom It May Concern.” （These are the things you should never say in your cover letter.）

    If you do happen to find that using “To Whom It May Concern” is appropriate, don't make grammar mistakes, for example, letters or punctuation.{#blank#}5{#/blank#}

A. However, it maybe interesting.

B. Those times have changed, though.

C. Making mistakes in writing will surely get you low scores.

D. It's also very impersonal, which some employers might not appreciate.

E. In that circumstance, sending and receiving letters is more of a formal greeting.

F. You might want to take note of other common errors you might be committing, too.

G. But according to Grammarly, there are four times when it's OK to use this greeting.

They Just Can't Help It

    My theory is that the female brain is mainly built for empathy — the ability to understand other people — and that the male brain is mainly built for building systems. {#blank#}1{#/blank#} For example, women are more likely to read magazines on fashion and parenting, while men will choose magazines that feature computers and sport.

    You may think that these preferences are influenced by the way people are taught to behave when they are growing up. However, this is not the case. A new study carried out at Cambridge University shows that newborn girls look longer at a face, and newborn boys look longer at a mobile. {#blank#}2{#/blank#} It has also been observed that girls are better at noticing signs of changes in other people's feelings. Boys, however, seem to enjoy building toy towers and playing with toys which have clear functions. {#blank#}3{#/blank#} People whose jobs are in the construction industries are almost male. Math and engineering, which require high levels of systems-thinking, are also male-chosen disciplines. Why do men and women have the difference? Actually women have four times as many brain neurons (神经) that connect the right and left part of their brains. Because of it, women have a better ability to multitask than men. {#blank#}4{#/blank#} Men tend to focus on a limited number of problems at a time. They will separate themselves from problems and view tasks as independent from one another.

    Some people may worry that I am suggesting one gender (性别) is better than the other, but this is not the case. My theory says that males and females differ in the kinds of things that they find easy, but that both genders have their strengths and weaknesses. {#blank#}5{#/blank#} It is not true. The study simply looks at males and females as two groups, and asks what differences exist, and why they are there.

A. Generally speaking, there are clear differences.

B. Their preference for building systems may change over time.

C. You can see the same kind of pattern in the adult workplace.

D. They will consider many sources of information at the same time.

E. It is important to stress that the female brain may be built more for empathy.

F. That suggests certain differences between male and female brains are biological.

G. Others may think the theory creates a belief of what a particular type of person is like.

    Directions: Read the following passage. Fill in each blank with a proper sentence given in the box.

    Each sentence can be used only once. Note that there are two more sentences than you need.

    Are Your Clothes Causing Pollution?

    Very small pieces of plastic, called microfibers, are polluting rivers and oceans. {#blank#}1{#/blank#} Clothes worn for outdoor activities and exercise are often made of artificial material, which is useful in keeping warm. But they contain very small plastic fibers, which may also be harming the environment when you wash them. When people wash these clothes, very small pieces go down the drain with the wash water.

    Studies on microfibers in the environment

    Pollution caused by plastic is not new, but recent studies have shown the effect of microfibers in the environment. Studies show very small microfibers are ending up in our waters, which may come from waste water treatment factories. A 2015 study found them in fish from California.

    Microfibers, effect on food supplies

    Beyond the waterways, the researchers say microfibers may end up in soil and agricultural lands. {#blank#}2{#/blank#} This means there is much to be learned about microfibers and the environment. Some studies have shown that microfibers end up inside sea animals, like oysters. {#blank#}3{#/blank#} Researchers say that the fibers tend not to move into the tissue of the fish, but it needs more study.

    Steps to save or keep microfibers from the environment

    Until more information becomes known, there are steps to take to reduce the amount of microfibers in the environment. People should use less of the artificial materials. If we already have those in our lives and we're using them, an important step would be washing them less. {#blank#}4{#/blank#} A bag is being designed in which to wash these clothes. It traps the microfibers in the bag and it may be available for purchase soon.

A. New technology may also help.

B. So if these microfiber s have been found in fish and seafood, are they safe to eat?

C. They can also move around the atmosphere.

D. Studies are conducted on how much of the microfibers is released

E. The source of these microfibers may surprise you: your clothes.

F. Washing machines keep microfibers from escaping with w ash water.

Discovering the Lost City

Sixty miles south, in Cusco, Hiram Bingham gazed thoughtfully at the old Incan stone wall. He had come to this place in search of Vilcapampa, the lost city of the Inca. But right here was the most beautiful stonework he had ever seen-huge stones cut so perfectly that not even a razor blade could be slipped between them.

The Inca had no iron tools to carve them, no wheel or animals to move them. The wall had endured time and earthquakes.{#blank#}1{#/blank#}

It was a mystery.

He walked through the cobbled streets of the old capital, Cusco. The Spanish had come to this city, conquered the Inca, taken their gold, and built churches over their temples. Suddenly, he stopped. Before him was the famous Temple of the Sun. He placed his hands on the sun-warmed stones so beautifully carved, as if they had grown together.

{#blank#}2{#/blank#}Would it hold gold and riches like the Spanish had found in Cusco? More than ever he was determined to find that city.

The next day Bingham began his search. He would look for ruins-that might be the key. He and his party, accompanied by the military man Sergeant Carrasco, left for the holy valley of the Urubamba River. They came to the sleepy old village in the valley, long ago an important city.

"Are there any ruins nearby?" Bingham asked. "Do you know of the lost city of Vilcapampa?" No one knew of it. Traveling north, the adventurers came upon a remote and wild canyon. In the distance were snowcapped mountains over three miles high.{#blank#}3{#/blank#}Bingham's determination to find the lost city grew with each turn of the increasingly wild path.

Far below in the valley, Bingham's party camped on a sandy beach alongside the thundering rapids of the Urubamba River. Days had gone by. No one knew of any ruins.

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This time, through the interpreter, the farmer said, "Yes. There are very good ruins on top of the mountain called Machu Picchu." The farmer pointed straight up.

"Can you take us there?" Bingham asked.

...

A. Hidden in the mountains, the lost city would be built of stones like these.

B. What could he be thinking!

C. But now the adventurers aroused the curiosity of a local farmer named Arteaga.

D. How had they built them!

E. Cliffs rose thousands of feet above the roaring rapids of the Urubamba River.

F. Suddenly, the clouds drifted away and there it was.